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AR245392A1 - Improved hot-rolling process for sealess tubes with preliminary diameter reduction of the semifinished products - Google Patents

Improved hot-rolling process for sealess tubes with preliminary diameter reduction of the semifinished products

Info

Publication number
AR245392A1
AR245392A1 AR90318469A AR31846990A AR245392A1 AR 245392 A1 AR245392 A1 AR 245392A1 AR 90318469 A AR90318469 A AR 90318469A AR 31846990 A AR31846990 A AR 31846990A AR 245392 A1 AR245392 A1 AR 245392A1
Authority
AR
Argentina
Prior art keywords
tubes
sealess
rolling process
diameter reduction
semifinished products
Prior art date
Application number
AR90318469A
Other languages
Spanish (es)
Original Assignee
Dalmine Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dalmine Spa filed Critical Dalmine Spa
Application granted granted Critical
Publication of AR245392A1 publication Critical patent/AR245392A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/14—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B21B25/04—Cooling or lubricating mandrels during operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

UN PROCEDIMIENTO PARA EL LAMINADO EN CALIENTE DE TUBOS SIN COSTURA, CON REDUCCION SIN NUCLEO (SIN MANDRIL) DEL DIAMETRO DE LA PIEZA INICIAL PERFORADA ANTES DE LA LAMINACION CONTINUA DE LA MISMA SOBRE UN MANDRIL, EN EL CUAL DICHA ETAPA DE REDUCCION SIN NUCLEO ES EFECTUADA EN LA MISMA LINEA DE LA ETAPA DE LAMINACION CONTINUA, SIN NINGUNA TRANSFERENCIA INTERMEDIA DE LA PIEZA INICIAL.A PROCEDURE FOR THE HOT ROLLING OF SEAMLESS TUBES, WITH REDUCTION WITHOUT NUCLEUM (WITHOUT CHUCK) OF THE DIAMETER OF THE INITIAL PIECE PERFORATED BEFORE THE CONTINUOUS LAMINATION OF IT ON A CHUCK, IN THE SUCH STAGE OF REDUCTION IS NO NUCLEUM IN THE SAME LINE OF THE STAGE OF CONTINUOUS LAMINATION, WITHOUT ANY INTERMEDIATE TRANSFER OF THE INITIAL PART.

AR90318469A 1989-11-30 1990-11-26 Improved hot-rolling process for sealess tubes with preliminary diameter reduction of the semifinished products AR245392A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02255989A IT1238224B (en) 1989-11-30 1989-11-30 PERFECTED HOT LAMINATION PROCESS OF PIPES WITHOUT WELDING WITH PREVENTIVE REDUCTION OF PERFORATED BLASTED

Publications (1)

Publication Number Publication Date
AR245392A1 true AR245392A1 (en) 1994-01-31

Family

ID=11197830

Family Applications (1)

Application Number Title Priority Date Filing Date
AR90318469A AR245392A1 (en) 1989-11-30 1990-11-26 Improved hot-rolling process for sealess tubes with preliminary diameter reduction of the semifinished products

Country Status (10)

Country Link
US (1) US5109689A (en)
EP (1) EP0430909B1 (en)
CN (1) CN1020682C (en)
AR (1) AR245392A1 (en)
AT (1) ATE102089T1 (en)
DE (1) DE69007033T2 (en)
ES (1) ES2050416T3 (en)
IT (1) IT1238224B (en)
PL (1) PL287993A1 (en)
RU (1) RU2036031C1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662632B1 (en) * 1990-05-30 1992-10-30 Plastic Omnium Cie PROCESS FOR PRODUCING THIN TUBES IN FLUORINATED RESIN, IN PARTICULAR IN POLYTETRAFLUORETHYLENE.
FI933293L (en) * 1991-01-22 1993-09-06 Pipe Rehab Int Inc VARIABELT VINKELMATNINGSFOERFARANDE FOER FODRING AV ROERDELAR
MX9702792A (en) * 1994-10-20 1998-02-28 Sumitomo Metal Ind Method of manufacturing seamless steel pipes and manufacturing equipment therefor.
JP3855300B2 (en) * 1996-04-19 2006-12-06 住友金属工業株式会社 Manufacturing method and equipment for seamless steel pipe
RU2214312C2 (en) * 2001-07-26 2003-10-20 ОАО "Челябинский трубопрокатный завод" Method for making tubes of hard-to-form steels and alloys with increased coefficient of linear expansion
EP1946859A1 (en) * 2004-01-16 2008-07-23 Sumitomo Metal Industries, Ltd. Method for manufacturing seamless pipes or tubes
EP2087949B1 (en) * 2006-10-16 2014-01-22 Nippon Steel & Sumitomo Metal Corporation Mandrel mill and process for manufacturing seamless pipe
DE102008050771A1 (en) * 2008-10-08 2010-04-29 Geotomographie Gmbh Seismic waves generation in bore hole by using electromagnetic transducers, involves pressing bore hole wall by using pneumatic, hydraulic or pressure devices
DE102008061141B4 (en) * 2008-12-09 2012-08-30 Sumitomo Metal Industries, Ltd. Method for producing seamless pipes by means of a three-roll bar rolling mill
CN102974615B (en) * 2012-11-08 2015-07-15 聊城市开发区全运钢管制造有限公司 Rolling process method of punched lining core of steel rod
CN114558891B (en) * 2022-03-04 2024-05-24 贵州捷盛钻具股份有限公司 Hollow steel hot rolling method for drill rod, hollow steel and hot rolling mill

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1499535A (en) * 1922-08-12 1924-07-01 John A Katzenmeyer Method of manufacturing tubes and a continuous mill therefor
FR783354A (en) * 1933-12-28 1935-07-11 Schloemann Ag Method and device for shrinking tubes
SU418234A1 (en) * 1968-11-23 1974-03-05 Ю. И. Блинов, М. А. Шубин, Ю. В. Самар нов , И. П. Макаров METHOD FOR PIPE ROLLING WITH TENSION ON THE REDUCTION MILL
DE2641555A1 (en) * 1976-09-15 1978-03-16 Schevtschenko METHOD OF CONTINUOUS TUBE ROLLING AND CONTINUOUS TUBE ROLLING MILL
DE2755058A1 (en) * 1977-12-08 1979-06-13 Mannesmann Ag METHOD OF MANUFACTURING SEAMLESS TUBES ON A BUTTON
US4318294A (en) * 1978-12-29 1982-03-09 Nippon Steel Corporation Method of manufacturing seamless metal pipes and tubes
JPS59286B2 (en) * 1979-08-20 1984-01-06 新日本製鐵株式会社 Continuous rolling method for pipes
FR2469962A1 (en) * 1979-11-21 1981-05-29 Vallourec METHOD AND DEVICE FOR PRODUCING A SOLDER-FREE STEEL TUBE BY HOT ROLLING ON CHUCK
DE3136381A1 (en) * 1981-09-14 1983-04-14 Kocks Technik Gmbh & Co, 4010 Hilden ROLLING MILL FOR THE PRODUCTION OF SEAMLESS TUBES
DE3140015A1 (en) * 1981-10-08 1983-04-21 Kocks Technik Gmbh & Co, 4010 Hilden PLANT FOR PRODUCING SEAMLESS TUBES
DE3309797A1 (en) * 1983-03-18 1984-09-20 Kocks Technik Gmbh & Co, 4010 Hilden METHOD AND SYSTEM FOR PRODUCING SEAMLESS TUBES
JPS60102211A (en) * 1983-11-08 1985-06-06 Sumitomo Metal Ind Ltd Manufacture of thick steel tube
US4798071A (en) * 1986-06-25 1989-01-17 Kocks Technik Gmbh & Co. Seamless tube production

Also Published As

Publication number Publication date
DE69007033D1 (en) 1994-04-07
IT8922559A0 (en) 1989-11-30
DE69007033T2 (en) 1994-06-01
PL287993A1 (en) 1991-12-02
RU2036031C1 (en) 1995-05-27
ATE102089T1 (en) 1994-03-15
IT8922559A1 (en) 1991-05-30
CN1020682C (en) 1993-05-19
EP0430909B1 (en) 1994-03-02
EP0430909A3 (en) 1991-10-02
CN1052063A (en) 1991-06-12
ES2050416T3 (en) 1994-05-16
US5109689A (en) 1992-05-05
EP0430909A2 (en) 1991-06-05
IT1238224B (en) 1993-07-12

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